Any way of modifying epubs while maintaining folder structure?
I have a truckload of epub files that have been set up for the Kindle; on my Opus, this results in empty margins that are far thicker than I want them.
So I've loaded the lot in Calibre and bulk-converted from epub to epub, only with margins set my way.
This works, but Calibre copies all the modified epubs in its own folder structure. This makes a mess of my organization. All I want it to do is to rewrite the existing epubs with the margins I want, while leaving the files where they are. Can it be set up to behave like that?